公开(公告)号：US4897607A

公开(公告)日：1990-01-30

申请号：US37619

申请日：1987-04-13

申请人： Peter Grunewald ,  Kurt Fork ,  Jurgen Weidner ,  Reinhold Koziel

发明人： Peter Grunewald ,  Kurt Fork ,  Jurgen Weidner ,  Reinhold Koziel

IPC分类号： B29C39/24 ,  B29B7/76 ,  B29C45/17 ,  B29K75/00 ,  G01R31/12 ,  G01R31/34 ,  H02H7/06

CPC分类号： G01R31/12 ,  G01R31/343 ,  H02H7/06

摘要： A method and device for detecting and localizing fault in electrical installations includes performing partial discharge measurements and high-frequency measurements at least at one location in the electrical installation and optionally in all phases, selectively comparing the measurement values with each other and with calibration signals, drawing conclusions from the measurements regarding the location and the type of the fault, selectively continuously and periodically performing the measurements at least at three measuring points while the installation is in operation, simulating the electrical installation in a computer as a high-frequency network, while simulating fault with the signals originating therefrom at the measuring points, comparing any measurement values which indicate fault with the simulated signal values for different fault types and fault locations, and determining the type and location of the fault from the simulated signal values which best agree with the measurement values and from the corresponding simulated fault.

摘要翻译： 用于检测和定位电气设备中的故障的方法和装置包括至少在电气安装中的一个位置和可选地在所有相中执行局部放电测量和高频测量，选择性地将测量值与校准信号进行比较， 从关于故障的位置和类型的测量结果中得出结论，至少在安装运行时在三个测量点选择性地连续和周期地执行测量，模拟作为高频网络的计算机中的电气安装，同时 在测量点模拟由其产生的信号的故障，将指示故障的任何测量值与用于不同故障类型和故障位置的模拟信号值进行比较，以及根据最合适的模拟信号值确定故障的类型和位置 的措施 从相应的模拟故障。

公开(公告)号：US4814699A

公开(公告)日：1989-03-21

申请号：US180087

申请日：1988-04-11

申请人： Reinhold Koziel ,  Kurt Fork ,  Jurgen Weidner

发明人： Reinhold Koziel ,  Kurt Fork ,  Jurgen Weidner

IPC分类号： G01R31/12 ,  G01R31/34 ,  H02H5/00 ,  H02H7/06

CPC分类号： G01R31/343 ,  G01R31/1227

摘要： A method for partial discharge detection and breaking spark measurement in a dynamo-electric high-voltage machine, especially for monitoring insulation status during operation of a stator winding and connected electrical output lines in a turbo-generator. The generator includes a stator having a stator winding and a stator housing, a rotor with an exciter winding and a shaft, defining an air gap between the rotor and the stator. At least one oil lubricated slide bearing supports the shaft of the rotor with a bearing shell being electrically insulated from the ground. The method includes decoupling the frequency spectrum of high-frequency electromagnetic oscillations resulting from the occurrence of partial discharges or breaking sparks and delivering the frequency spectrum of high-frequency electromagnetic oscillations to a partial discharge measurement apparatus. The frequency spectrum of high-frequency electromagnetic oscillations introduced into the machine shaft through the air gap in the event of partial discharges inside the stator winding or the output lines are decoupled while utilizing the machine shaft insulated by a film of lubricant as a antenna. Then the frequency spectrum of high-frequency electromagnetic oscillations are delivered to the partial discharge measurement apparatus by using the bearing shell of the oil lubricated slide bearing as transmission element.

摘要翻译： 一种用于发电电动高压机中的局部放电检测和断路火花测量的方法，特别是用于在涡轮发电机中的定子绕组和连接的电力输出线的操作期间监测绝缘状态。 发电机包括具有定子绕组和定子壳体的定子，具有励磁机绕组和轴的转子，在转子和定子之间限定气隙。 至少有一个油润滑的滑动轴承支撑转子的轴，轴承壳与地面电绝缘。 该方法包括从发生局部放电或断开火花导致的高频电磁振荡的频谱解耦，并将高频电磁振荡的频谱传​​送到局部放电测量装置。 在使用由润滑剂膜绝缘的机器轴作为天线的情况下，在定子绕组或输出线内发生部分放电的情况下，通过气隙引入机轴的高频电磁振荡的频谱被解耦。 然后通过使用油润滑滑动轴承的轴承壳作为传动元件将高频电磁振荡的频谱传​​送到局部放电测量装置。

公开(公告)号：US5547337A

公开(公告)日：1996-08-20

申请号：US345136

申请日：1994-11-28

申请人： Kurt Fork ,  Frank Krutemeier

发明人： Kurt Fork ,  Frank Krutemeier

IPC分类号： F01K13/02 ,  G05B11/32 ,  H02P9/04 ,  F04D17/06

CPC分类号： H02P9/04

摘要： In a method and a device for the closed-loop control of a turbine-generator configuration, a turbine control element is supplied with a first correcting variable and an exciter control element is supplied with a second correcting variable. The correcting variables in each case are formed from at least one reference value. In order to ensure reliable closed-loop control, the first correcting variable for the turbine control element is composed of at least two partial correcting variables. One of the partial correcting variables is derived from the reference value for forming the second correcting variable for the exciter control element.

摘要翻译： 在用于涡轮发电机结构的闭环控制的方法和装置中，涡轮机控制元件被提供有第一校正变量并且激励器控制元件被提供有第二校正变量。 每种情况下的校正变量由至少一个参考值形成。 为了确保可靠的闭环控制，涡轮机控制元件的第一校正变量由至少两个部分校正变量构成。 部分校正变量中的一个从用于形成用于激励器控制元件的第二校正变量的参考值导出。

公开(公告)号：US4393345A

公开(公告)日：1983-07-12

申请号：US199685

申请日：1980-10-22

申请人： Kurt Fork ,  Wolfgang Kaufhold ,  Wolfgang Meusel ,  Hermann Waldmann

发明人： Kurt Fork ,  Wolfgang Kaufhold ,  Wolfgang Meusel ,  Hermann Waldmann

IPC分类号： H02P9/14 ,  H02P9/10 ,  H02H7/06 ,  H02P9/00

CPC分类号： H02P9/10 ,  Y10S505/851

摘要： A circuit for damping hunting oscillations of controlled electric machines. The circuit is provided with a measuring circuit for determining the hunting oscillations and an identifier circuit for determining the angle components of such hunting oscillations. A phase shifter circuit is provided for receiving the angle components produced by the identifier circuit and forming a hunting oscillation correction signal which is shifted in phase from the hunting oscillations by a predetermined phase angle. The hunting oscillation correction signal is conducted to a control unit of the electric machine. The invention is particularly useful in damping hunting by the rotors of voltage controlled synchronous generators.

摘要翻译： 用于阻尼受控电机摆动振荡的电路。 该电路设置有用于确定捕获振荡的测量电路和用于确定这种振荡的角度分量的识别器电路。 提供了一种移相器电路，用于接收由识别电路产生的角度分量，并形成一个摆动振荡校正信号，该振荡校正信号相对于摆动振荡相移预定的相位角。 将振荡校正信号传送到电机的控制单元。 本发明特别适用于由电压控制的同步发电机的转子阻尼摆动。

公开(公告)号：US4015186A

公开(公告)日：1977-03-29

申请号：US615842

申请日：1975-09-23

申请人： Kurt Fork

发明人： Kurt Fork

IPC分类号： H02H7/06 ,  H02H3/00

CPC分类号： H02H7/06

摘要： In a system for limiting torque occurring in a turbine-generator shaft when a three-pole short circuit is switched off, one pole of a switch that switches-off the short circuit is opened first, and both of the other poles are then opened after the passage of a predetermined delay period.

摘要翻译： 在关闭三极短路的情况下，限制在涡轮发电机轴中产生的转矩的系统中，首先打开断开短路的开关的一极，然后在两个另一极之后打开 经过预定的延迟周期。

公开(公告)号：US4057714A

公开(公告)日：1977-11-08

申请号：US727795

申请日：1976-09-29

申请人： Kurt Fork ,  Dietrich Lambrecht ,  Hermann Waldmann ,  Helmut Hofmann

发明人： Kurt Fork ,  Dietrich Lambrecht ,  Hermann Waldmann ,  Helmut Hofmann

IPC分类号： F01D21/00 ,  G06G7/63 ,  G06G7/64 ,  G07C3/00 ,  G01L3/00 ,  G01M15/00 ,  G06F15/20

CPC分类号： G07C3/00 ,  F01D21/00 ,  F01D21/003 ,  G06G7/63 ,  G06G7/64

摘要： Device for monitoring the service life of the shaft of a turbine-generator set includes an analog computer circuit having a pair of inputs and an output, means for feeding to the inputs of the analog computer circuit electrical quantities proportional to the voltage and the current of the generator, the analog computer circuit having means for converting the electrical quantities that are proportional to the generator voltage and current to an electrical quantity proportional to the electrical torque in the air gap of the generator, a simulation circuit having an input connected to the output of the analog computer circuit for receiving therefrom the electrical quantity proportional to the electrical torque in the air gap of the generator, the simulation circuit comprising means for determining the torques in individual sections of the shaft of the turbine-generator set and having a multiplicity of outputs corresponding to the number of individual sections of the shaft, an analog-to-digital converter having an output and having inputs connected to the outputs of the simulation circuit for receiving therefrom analog data corresponding to the torques in individual sections of the shaft and converting them to corresponding digital data, a digital computer having an input connected to the output of the analog-to-digital converter and connected therethrough to the simulation circuit, a trouble-monitoring device connected parallel to the analog-to-digital converter, and having means for restricting the analog-to-digital converter to feed the digital data through the output thereof to the input of the digital computer only if a torque of extreme value is present in a section of the shaft, the digital computer having means for converting the digital data into signals proportional to the service life of the shaft.

摘要翻译： 用于监测涡轮发电机组的轴的使用寿命的装置包括具有一对输入和输出的模拟计算机电路，用于馈送模拟计算机电路的输入的装置与电压和电流成比例的电量 发电机，模拟计算机电路具有将与发电机电压和电流成比例的电量转换成与发电机气隙中的电转矩成比例的电量的装置，具有连接到输出端的输入端的模拟电路 模拟计算机电路用于从其接收与发电机气隙中的电力转矩成比例的电量，该模拟电路包括用于确定涡轮发电机组的轴的各个部分中的扭矩并具有多个 对应于轴的各个部分的数量的输出，模拟到二进制 具有输出并且具有连接到模拟电路的输出的输入，用于从其接收与轴的各个部分中的扭矩相对应的模拟数据并将其转换成相应的数字数据;数字计算机，其输入连接到 所述模数转换器通过其连接到所述模拟电路，与所述模数转换器并联连接的故障监控装置，以及具有用于限制所述模数转换器以通过所述模拟数字转换器馈送所述数字数据的装置 其输出到数字计算机的输入端，只要在轴的一部分中存在极值转矩，则数字计算机具有用于将数字数据转换成与轴的使用寿命成正比的信号的装置。

公开(公告)号：US3976917A

公开(公告)日：1976-08-24

申请号：US557606

申请日：1975-03-12

申请人： Kurt Fork

发明人： Kurt Fork

IPC分类号： H02H1/00 ,  H02H7/06

CPC分类号： H02H7/06 ,  H02H1/0053

摘要： An overload protection device for a turboset including an alternating current generator, a turbine for the drive thereof, and a network supplied from the generator when disconnecting any short circuit within the network comprises a memory connected to the generator for storing a voltage vector corresponding to positive sequence components obtained therefrom prior to the occurrence of a fault in the network, a comparison circuit connected to the memory and to the generator for comparison of of the stored voltage vector with a voltage vector corresponding to positive sequence components obtained from the generator following occurrence of the fault to generate a difference value, and a switch interconnected between the network and the generator for being released upon the difference value exceeding a predetermined value.

摘要翻译： 一种用于涡轮机的过载保护装置，包括交流发电机，用于其驱动的涡轮机，以及当断开网络内的任何短路时从发电机提供的网络包括连接到发电机的存储器，用于存储对应于正的电压矢量 在网络发生故障之前从其获得的序列分量，连接到存储器和发生器的比较电路，用于将存储的电压矢量与对应于从发生器发生的正序分量的电压矢量进行比较 产生差值的故障，以及在网络和发电机之间互连的开关，用于在差值超过预定值时被释放。